dexamethasone suppression test

From Aaushi
Jump to navigation Jump to search

Indications

Reference interval

Principle

Predictive value of a positive test is poor (0.6%)

Predictive value of a negative test is close to 100%.

Procedure

Interferences

Management

* serum ACTH before 8 mg dexamethasone suppression test or inferior petrosal sinus ACTH

* intrapetrosal sinus sampling identifying an ACTH-secreting pituitary adenoma renders an 8 mg dexamethasone suppression test unnecessary[2]

More general terms

Additional terms

References

  1. Saunders Manual of Medical Practice, Rakel (ed), WB Saunders, Philadelphia, 1996, pg 652
  2. Jump up to: 2.0 2.1 2.2 2.3 Medical Knowledge Self Assessment Program (MKSAP) 11, 14, 17, 18, 19. American College of Physicians, Philadelphia 1998, 2006, 2015, 2018, 2022
  3. Elhomsy G, Staros EB Medscape: Dexamethasone Suppression Test http://emedicine.medscape.com/article/2114191-overview